고속철도는 고속도로에 비하여 저탄소 친환경적인가?

서지정보

ㆍ발행기관 : 한국도로학회 ㆍ수록지정보 : 한국도로학회논문집 / 18권 / 5호
ㆍ저자명 : 강태석, 장현호

목차

1. 서론
1.1. 연구의 배경 및 목적
1.2. 연구의 범위 및 방법
2. 선행 연구 고찰
2.1. 고속철도의 친환경성 관련 연구
2.2. 고속철도의 친환경성에 대한 반대연구
2.3. 시사점
3. 수단별 저탄소 친환경경쟁력 분석 방법
3.1. 고속철도 CO2 배출량 산정 방법
3.2. 고속도로 CO2 배출량 산정 방법
3.3. 수단별 CO2 배출 원단위 산정 방법
4. 수단별 CO2 배출 원단위 산정 및 비교
4.1. 수단별 CO2 배출 원단위 산정
4.2. 결과 평가 및 시사점
5. 결론 및 향후연구
REFERENCES

영어 초록

PURPOSES : The aim of this article is to compare and identify eco-friendly competitiveness between (regional) motorway and high-speed rail(HSR) from the perspective of CO2 emission in the Republic of Korea.
METHODS : In order for an analysis of low-carbon competitiveness between the two modes, CO2e emission, CO2eppk (equivalent CO2 gram per passenger kilometer), is employed as a comparison index. As for HSR, the index is calculated based on the passenger transport data and the gross of CO2e produced by Kyungbu high-speed line in 2013. Additionally, the gross of CO2e is computed by the greenhouse gas emission factors of domestic electricity generation mix. Regarding the index of motorway, it is directly calculated using both the official CO2e emission factor and the passenger-car occupancy of motorway.
RESULTS: The results revealed, in the case of inter-regional transport, that the CO2e emission of displacement-based cars is 54.9% less than that of HSR, as the domestic electric power systems heavily relies on the thermal power plants over 66%. Note that internal combustion engines commonly used for vehicles are more energy-efficient than steam-driven turbines usually utilized for thermal power generation.
CONCLUSIONS: It can be seen, at the very least in our study, that HSR has no superiority over motorway in the case of CO2e emission under the situations of domestic electricity generation mix. In addition, advanced eco-friendly vehicles have strong advantages over HSR. Therefore, all-out efforts should be made to develop and harvest renewable energy sources in order to achieve low-carbon HSR, sparing fossil fuels.

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